Feed/nurse on demand. About very 2-3 hours at most... if breastfeeding, some babies even need to nurse every hour. This is common as well.
As for sleep... your baby is very young, a newborn... they typically sleep/nap a lot.
I REALLY believe that a "schedule" for a baby this young is too early. I would wait until baby is about 5-6 months old.
Typically, a baby this young has a pattern of:
wake, feed/nurse, awake time, feed/nurse, nap/sleep. And repeat.
Even a diaper change and a bath is an "activity."
the window of "awake time" for a newborn is typically about 2 hours. Then they get tired again.
I recommend the book "Secrets of The Baby Whisperer- how to calm,connect,and communicate with your baby" by Tracy Hogg. Or the book "What To Expect The First Year" by Arlene Eisenberg.
Remember, that each baby is different...and with their own "pattern." Baby/newborns must be fed on demand...sometimes they are hungrier than at other times. Even during the night if they wake... feed her/him. At this age, you do not deny a feeding if that is what they need.
Normally, at this age as well...they are still getting used to sleeping...napping. They may not have a "pattern" yet either & are still getting used to "day" and "night" times. You need to read their "signals' as to when they are tired or hungry.
For me, at this age with my kids, I nursed on demand...throughout entire day and night. They also napped a lot.
All the best,
Susan